<template>
    <div class="header">
        <div class="nav-top-bar">
            <div class="container">
                <div class="top-bar-menu">
                    <a href="javascript:;">小米商城</a>
                    <a href="javascript:;">MUI</a>
                    <a href="javascript:;">云服务</a>
                    <a href="javascript:;">协议规则</a>
                </div>
                <div class="top-bar-user">
                    <a href="javascript:;" v-if="username">{{username}}</a>
                    <a href="javascript:;" v-if="!username" @click="login">登录</a>
                    <a href="javascript:;" v-if="username" @click="logout">退出</a>
                    <a href="/order/list" v-if="username">我的订单</a>
                    <a href="/cart" class="my-cart" @click="goToCart">
                        <span class="icon-cart"></span>购物车({{ cartCount }})
                    </a>
                </div>
            </div>
        </div>
        <div class="nav-header">
            <div class="container">
                <div class="header-log">
                    <a href="/index"></a>
                </div>
                <div class="header-menu">
                    <div class="header-menu-item">
                        <span>小米手机</span>
                        <div class="children">
                            <ul>
                                <li class="product" v-for="(item,index) in phoneList" :key="index">
                                    <a :href="'/product/'+item.id" target="_blank">
                                        <div class="pro-img">
                                            <img :src="item.mainImage" alt="item.subtitle">
                                        </div>
                                        <div class="pro-name">{{item.name}}</div>
                                        <div class="pro-price">{{item.price}}</div>
                                    </a>
                                </li>
                            </ul>
                        </div>
                    </div>
                    <div class="header-menu-item">
                        <span>RedMi红米</span>

                    </div>
                    <div class="header-menu-item">
                        <span>红米</span>
                        <div class="children">
                            <ul>
                                <li class="product">
                                    <a href="" target="_blank">
                                        <div class="pro-img">
                                            <img v-lazy="'//cdn.cnbj1.fds.api.mi-img.com/mi-mall/174a2f9256a44b98f9e08bbe30528329.png?thumb=1&w=160&h=110&f=webp&q=90'">
                                        </div>
                                        <div class="pro-name">小米电视大师82英寸至尊纪念版</div>
                                        <div class="pro-price">49999元起</div>
                                    </a>
                                </li>
                                <li class="product">
                                    <a href="" target="_blank">
                                        <div class="pro-img">
                                            <img src="//cdn.cnbj1.fds.api.mi-img.com/mi-mall/174a2f9256a44b98f9e08bbe30528329.png?thumb=1&w=160&h=110&f=webp&q=90">
                                        </div>
                                        <div class="pro-name">小米电视大师82英寸至尊纪念版</div>
                                        <div class="pro-price">49999元起</div>
                                    </a>
                                </li>
                                <li class="product">
                                    <a href="" target="_blank">
                                        <div class="pro-img">
                                            <img src="//cdn.cnbj1.fds.api.mi-img.com/mi-mall/174a2f9256a44b98f9e08bbe30528329.png?thumb=1&w=160&h=110&f=webp&q=90">
                                        </div>
                                        <div class="pro-name">小米电视大师82英寸至尊纪念版</div>
                                        <div class="pro-price">49999元起</div>
                                    </a>
                                </li>
                            </ul>
                        </div>
                    </div>
                </div>
                <div class="header-search">
                    <div class="wrapper">
                        <input type="text">
                        <a href="#"></a>
                    </div>
                </div>
            </div>
        </div>
    </div>
</template>

<script>
    import { Message } from 'element-ui'
    import { mapState } from 'vuex'
    export default {
        name: "nav-header",
        data(){
          return{
              phoneList:[]
          }
        },
        computed:{

            // username(){
            //     return this.$store.state.username
            // },
            // cartCount(){
            //     return  this.$store.state.cartCount || 0;
            // }
            //采用辅助函数
            ...mapState(['username','cartCount'])
        },
        mounted() {
            this.getProductionList();
        },
        filters:{
            currency(val){
                if(!val)return "0.00"
                return '￥' + val.toFixed(2) + '元'
            }
        },
        methods:{
            getProductionList(){
                this.axios.get('/products',{
                    params:{
                        categoryId:'100012'
                    }
                }).then((res) => {
                    console.log(res);
                    if(res.list.length>6){
                        this.phoneList = res.list.slice(0,6)
                    }else {
                        this.phoneList = res.list
                    }

                })
            },
            login(){
                this.$router.push('/login')
            },
            goToCart(){
                this.$router.push('/cart')
            },
            logout(){
                this.axios.post("/user/logout").then(() => {
                    Message.success("退出成功");
                    this.$cookie.set("userId", "", { expires: "-1" });
                    this.$store.dispatch("saveUserName", "");
                    this.$store.dispatch("saveCartCount", "0");
                });
            }
        }
    }
</script>

<style lang="scss">
    @import "./../../assets/scss/base.scss";
    @import "./../../assets/scss/mixin.scss";
    @import "./../../assets/scss/config.scss";
    .header{
        .nav-top-bar{
            height: 39px;
            line-height: 39px;
            background: #333333;
            color: #B0B0B0;
            .container{
                @include flex();
                a{
                    display: inline-block;
                    color: #B0B0B0;
                    margin-right: 17px;
                }
                .my-cart{
                    width: 110px;
                    background-color: #FF6600;
                    text-align: center;
                    color: #ffffff;
                    margin-right: 0px;
                    .icon-cart{
                        @include bgimg(16px,12px,'/imgs/icon-cart-checked.png');
                        margin-right: 4px;
                    }
                }
            }
        }
        .nav-header{
            .container {
                position: relative;
                height: 112px;
                @include flex();

                .header-menu{
                    display: inline-block;
                    width: 300px;
                    padding: 20px;
                    .header-menu-item{
                        display: inline-block;
                        color: #333333;
                        font-weight: bold;
                        font-size: 16px;
                        line-height: 112px;
                        margin-right: 20px;
                        span{
                            cursor: pointer;

                        }
                        &:hover{
                            color: $colorA;
                            .children{
                                height:220px;
                                opacity: 1;
                            }
                        }
                        .children{
                            position: absolute;
                            top: 112px;
                            left: 0px;
                            width: 1226px;
                            border-top: 1px solid #E5E5E5;
                            box-shadow: 0px 7px 6px 0px rgba(0,0,0,0.11);
                            z-index: 20;
                            background: #ffffff;
                            height: 0px;
                            opacity: 0;
                            overflow: hidden;
                            transition: all 0.5s;
                            .product{
                                float: left;
                                width: 16.6%;
                                height: 220px;
                                font-size: 12px;
                                line-height: 12px;
                                position: relative;
                                a{
                                    display: inline-block;
                                    text-align: center;
                                }
                                .pro-img{
                                    height: 137px;
                                    img{
                                        height: 111px;
                                        width: auto;
                                        margin-top: 16px;
                                    }
                                }
                                .pro-name{
                                    font-weight: bold;
                                    margin-top: 19px;
                                    margin-bottom: 8px;
                                    color: $colorB;
                                }
                                .pro-price{
                                    color: $colorA;
                                }
                                &:before{
                                    content: ' ';
                                    position: absolute;
                                    top: 28px;
                                    right: 0;
                                    border-left: 1px solid $colorF;
                                    height: 100px;
                                    width: 1px;
                                }
                                &:last-child:before{
                                    display: none;
                                }
                            }

                        }

                    }
                }
            }
        }
        .header-search{
            width: 319px;
            .wrapper{
                height: 50px;
                border: 1px solid #E0E0E0;
                display: flex;
                align-items: center;
                input{
                    border: none;
                    border-right: 1px solid #E0E0E0;
                    width: 264px;
                    height: 50px;
                    padding-left: 15px;
                    box-sizing: border-box;
                }
                a{
                    @include bgimg(18px,18px,'/imgs/icon-search.png');
                    margin-left: 17px;
                }
            }
        }
    }
</style>
